From f49b8138e62377d1c41ea7ffd55afb093382ee34 Mon Sep 17 00:00:00 2001 From: David Dunn Date: Wed, 23 Feb 2022 22:57:42 +0000 Subject: [PATCH] KVM: selftests: Carve out helper to create "default" VM without vCPUs Carve out portion of vm_create_default so that selftests can modify a "default" VM prior to creating vcpus. Signed-off-by: David Dunn Message-Id: <20220223225743.2703915-3-daviddunn@google.com> Signed-off-by: Paolo Bonzini --- .../selftests/kvm/include/kvm_util_base.h | 3 +++ tools/testing/selftests/kvm/lib/kvm_util.c | 21 +++++++++++++------ 2 files changed, 18 insertions(+), 6 deletions(-) diff --git a/tools/testing/selftests/kvm/include/kvm_util_base.h b/tools/testing/selftests/kvm/include/kvm_util_base.h index 4ed6aa049a91..f987cf7c0d2e 100644 --- a/tools/testing/selftests/kvm/include/kvm_util_base.h +++ b/tools/testing/selftests/kvm/include/kvm_util_base.h @@ -336,6 +336,9 @@ struct kvm_vm *vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus, uint32_t num_percpu_pages, void *guest_code, uint32_t vcpuids[]); +/* Create a default VM without any vcpus. */ +struct kvm_vm *vm_create_without_vcpus(enum vm_guest_mode mode, uint64_t pages); + /* * Adds a vCPU with reasonable defaults (e.g. a stack) * diff --git a/tools/testing/selftests/kvm/lib/kvm_util.c b/tools/testing/selftests/kvm/lib/kvm_util.c index d8cf851ab119..64618032aa58 100644 --- a/tools/testing/selftests/kvm/lib/kvm_util.c +++ b/tools/testing/selftests/kvm/lib/kvm_util.c @@ -362,6 +362,20 @@ struct kvm_vm *vm_create(enum vm_guest_mode mode, uint64_t phy_pages, int perm) return vm; } +struct kvm_vm *vm_create_without_vcpus(enum vm_guest_mode mode, uint64_t pages) +{ + struct kvm_vm *vm; + + vm = vm_create(mode, pages, O_RDWR); + + kvm_vm_elf_load(vm, program_invocation_name); + +#ifdef __x86_64__ + vm_create_irqchip(vm); +#endif + return vm; +} + /* * VM Create with customized parameters * @@ -412,13 +426,8 @@ struct kvm_vm *vm_create_with_vcpus(enum vm_guest_mode mode, uint32_t nr_vcpus, nr_vcpus, kvm_check_cap(KVM_CAP_MAX_VCPUS)); pages = vm_adjust_num_guest_pages(mode, pages); - vm = vm_create(mode, pages, O_RDWR); - kvm_vm_elf_load(vm, program_invocation_name); - -#ifdef __x86_64__ - vm_create_irqchip(vm); -#endif + vm = vm_create_without_vcpus(mode, pages); for (i = 0; i < nr_vcpus; ++i) { uint32_t vcpuid = vcpuids ? vcpuids[i] : i;